Preheat your oven to 350°F. Grease 11 muffin tins generously with coconut oil or use liners.
Blend all ingredients, except the chocolate chips, in a high-speed blender or food processor until smooth.
Gently mix in the dark chocolate chips.
Pour the batter into the muffin tins, filling them 3/4 full. Add extra chocolate chips on top if you like.
Bake at 350°F for 15-20 minutes (11 minutes for mini-muffins) until a toothpick comes out clean.
Allow the muffins to cool in the tin for at least 10 minutes before removing. Pro tip: use a spoon to slide them out.
Enjoy! Keep them in an airtight container on the counter for up to 4 days, in the refrigerator for a week, or freeze for up to 3 months.